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ISCOM2600G-HI (A) Series Configuration Guide
SLA is a technology for detecting network performance and gathering network statistics in
real time, such as the responding time, network jitter, delay, and packet loss rate.
SLA principle
SLA implements the end-to-end test, involving two ends:
Figure 9-5 SLA test networking
As shown in Figure 9-5, Switch A and Switch B are located in different spots but belong to
the same user, and the user needs to test network performance between them. Configure SLA
operation on Switch A with its destination address as Switch B, and then conduct scheduling
to test network performance. In this way, the upper layer application (such as NView NNM)
can obtain the roundtrip packet loss rate, roundtrip delay, and jitter through SLA statistics, and
then analyze network performance and provide the user with required data.
Basic SLA concepts
As a static concept, it is an SLA network performance testing task from end to end, including
jitter test/packet loss rate (Y1731-jitter/Y1731-pkt-loss) on the Layer 2 network and
delay/jitter test (ICMP-echo/ICMP-jitter) on the Layer 3 network.
As a dynamic concept, it is a schedule of an operation which contains multiple periodic tests.
Only after the operation is scheduled can the network performance test be started.
As a dynamic concept, it is an execution of one operation. A schedule period may contain
multiple test periods. Testing data output in test periods can be output as the network
performance test result.
Source end: it sends the test packet, abstracts test data from the packet replied with by
the destination end, and obtains test data through algorithms. It implements end-to-end
performance test, including delay, jitter, and packet loss rate.
Destination end: it replied the source end with the packet including test data.
Operation
Schedule
Test
Detection
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